feat(editor): add --touch-tree CI integrity check

Recursively walks a directory, identifies every recognized .w*
file by 4-byte magic, and parses the standard catalog header
(magic + version + length-prefixed name + entryCount) to
confirm the file isn't truncated, corrupted, or otherwise
malformed at the header level. Reports per-file PASS/FAIL +
extension-mismatch warnings (when a file's actual extension
doesn't match what its magic says it should be).

Exits 1 on any FAIL — designed as a CI gate that runs after
content build to catch truncations / write-failures /
disk-full mid-emit. World/asset formats (WOM/WOB/WHM/WOT/WOW)
are recognized by magic but the catalog-header probe is
skipped since their layouts differ.

Implausibility caps: catalog-name length > 1MB or
entryCount > 1M trigger failure as likely corruption signals.
--quiet hides the per-file PASS/FAIL list (summary line only);
--json variant for tooling integration.

tools/editor/cli_arg_required.cpp

@@ -135,7 +135,7 @@ const char* const kArgRequired[] = {
     "--info-wliq", "--validate-wliq",
     "--export-wliq-json", "--import-wliq-json",
     "--info-magic", "--summary-dir", "--rename-by-magic",
-    "--bulk-rename-by-magic",
+    "--bulk-rename-by-magic", "--touch-tree",
     "--gen-animations", "--gen-animations-combat", "--gen-animations-movement",
     "--info-wani", "--validate-wani",
     "--export-wani-json", "--import-wani-json",